package com.sikao.app.app;

import android.app.Activity;
import android.content.Context;

import com.sikao.app.ui.AddGoodsStepThreeActivity;
import com.sikao.app.ui.AddGoodsStepTwoActivity;
import com.sikao.app.ui.ReleaseGoodsActivity;
import com.sikao.app.utils.ConstantClass;

import java.util.Stack;

/**
 * Created by y50 on 2016/4/17.
 */
public class AppManager {

	private static AppManager appManager;
	public static Stack<Activity> activityStack;

	private AppManager() {
		activityStack = new Stack<Activity>();
	}

	public static AppManager getAppManager() {
		if (appManager == null) {
			appManager = new AppManager();
		}
		return appManager;
	}

	/**
	 * 添加Activity到堆栈
	 */
	public void addActivity(Activity activity) {
		activityStack.add(activity);
	}

	/**
	 * 获取当前Activity（堆栈中最后一个压入的）
	 */
	public Activity currentActivity() {
		Activity activity = activityStack.lastElement();
		return activity;
	}

	/**
	 * 结束当前Activity（堆栈中最后一个压入的）
	 */
	public void finishActivity() {
		Activity activity = activityStack.lastElement();
		finishActivity(activity);
	}

	/**
	 * 结束指定的Activity
	 */
	public void finishActivity(Activity activity) {
		if (activity != null) {
			activityStack.remove(activity);
			activity.finish();
			activity = null;
		}
	}

	/**
	 * 跳转到卖家中心
	 */
	public void toSeller() {
		appManager.finishActivity(AddGoodsStepThreeActivity.class);
		appManager.finishActivity(AddGoodsStepTwoActivity.class);
		appManager.finishActivity(ReleaseGoodsActivity.class);
	}

	/**
	 * 结束指定类名的Activity
	 */
	public void finishActivity(Class<?> cls) {
		for (Activity activity : activityStack) {
			if (activity.getClass().equals(cls)) {
				finishActivity(activity);
			}
		}
	}

	/**
	 * 结束所有Activity
	 */
	public void finishAllActivity() {
		for (int i = 0, size = activityStack.size(); i < size; i++) {
			if (null != activityStack.get(i)) {
				activityStack.get(i).finish();
			}
		}
		activityStack.clear();
	}

	/**
	 * 退出应用程序
	 */
	public void AppExit(Context context) {
		ConstantClass.type = 0;
		finishAllActivity();
		System.exit(0);
		/*ActivityManager activityMgr = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
		activityMgr.killBackgroundProcesses(context.getPackageName());
		android.os.Process.killProcess(android.os.Process.myPid());*/
	}
}
